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NAPHTHOL AS-KB

C.I.:37526
CAS: 135-63-7
Chemical Name: NAPHTHOL AS-KB
Molecular formula: C₁₈H₁₄ClNO₂
Appearance: light beige powder
Shade: Approximate
Intensity: 100±3%
Content: ≥98%
Melting point: ≥240℃
Alkali-insoluble: ≤0.5%
2,3 acid content: ≤0.2%
The sieve residue 60 mesh (or 80 mesh)≤5%
Usage: This product is mainly used as an intermediate of organic pigments, which can produce organic pigment red 11, 147, 162. This product can also be used for dyeing cotton, viscose and silk, generally not used for printing. This product has low affinity to cotton, the best dyeing temperature is 30℃, and the infection temperature is 90℃.

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